Comment 46 for bug 1315360

Ok finally got mouse support back, and even enabled two-finger scroll via the touchpad, by commenting out the

 #Section "InputClass"
# Identifier "evdev touchpad catchall"

piece in /usr/share/X11/xorg.conf.d/10-evdev.conf

and putting this in /usr/share/X11/xorg.conf.d/50-synaptics.conf:
Section "InputClass"
        Identifier "Touchpad"
        Driver "synaptics"
        MatchIsTouchpad "yes"
        MatchDevicePath "/dev/input/event*"
        Option "SHMConfig" "on"
        Option "MinSpeed" "0.5"
        Option "MaxSpeed" "1.0"
        Option "AccelFactor" "0.075"
        Option "TapButton1" "1"
        Option "TapButton2" "2" # multitouch
        Option "TapButton3" "3" # multitouch
        Option "VertTwoFingerScroll" "1" # multitouch
        Option "HorizTwoFingerScroll" "1" # multitouch
        Option "VertEdgeScroll" "1"
        Option "CoastingSpeed" "8"
        Option "CornerCoasting" "1"
        Option "CircularScrolling" "1"
        Option "CircScrollTrigger" "7"
        Option "EdgeMotionUseAlways" "1"
        Option "LBCornerButton" "8" # browser "back" btn
        Option "RBCornerButton" "9" # browser "forward" btn
        Option "HorizHysteresis" "0" # mouse "stickiness"
        Option "VertHysteresis" "0" # mouse "stickiness"
EndSection

then
sudo depmod -a
sudo update-grub

Now if I could only get the actual wifi mouse to work at the same time :)